A comparatively flat rigid item, with or without a centrally located aperture, designed to hold an annular bearing or a sleeve bearing in a fitted inclosure. It must have drilled and/or tapped holes for mounting purposes. Excludes:end bell, electrical rotating equipment.
1.8700 inches nominal overall thickness, 0.8100 inches nominal aperture diameter, copper alloy 903 aligning ring material, 0.6070 inches minimum and 0.6120 inches maximum outside diameter